Well, sure, but if memory serves, there are car platforms where you connect for say playing music and the cars app on your phone uses the bluetooth connection to exfil data to the car company via the phone's internet.
I'm just saying that "disable car's telemetry" is not necessarily 100% for preventing exfil of car telemetry if you then connect your phone while having the car app running.
Like, I'm not sure of the company, but I know there was some "I modded my car so it couldn't phone home but I'm still getting reports from the manufacturer about excessive acceleration" and it ended up being because the owner had disabled the car's telemetry but was using the app on the phone for remote start and music or whatever.